/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package controller;

import accessor.Products;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import tools.MyTool;

/**
 *
 * @author QUYET
 */
@WebServlet(name = "do_add_cart", urlPatterns = {"/do_add_cart"})
public class do_add_cart extends HttpServlet {

    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        HttpSession session = request.getSession(true);
        List<Products> cart = session.getAttribute("cart")!=null?new MyTool().groupDuplicateProduct((List<Products>)session.getAttribute("cart")):new ArrayList<Products>();
        try {
            int productID = Integer.parseInt(request.getParameter("productID"));
            String productName = request.getParameter("productName");
            String defaultImage = request.getParameter("defaultImage");
            int quantity = Integer.parseInt(request.getParameter("quantity"));
            Double price = Double.parseDouble(request.getParameter("price"));
            Products product = new Products();
            product.setProductID(productID);
            product.setProductName(productName);
            product.setDefaultImage(defaultImage);
            product.setQuantity(quantity);
            product.setPrice(price);
            cart.add(product);
            session.setAttribute("cart",new MyTool().groupDuplicateProduct(cart));
            out.print(new MyTool().groupDuplicateProduct(cart).size());
        } finally {            
            out.close();
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
